Whether it's an oversized parasite, a diseased organ preserved in formaldehyde or a historical look at the outrageous medical practices of yore, there's bound to be an address to discover some sort of unnerving discovery even in less traveled destinations.

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Here's a quick rundown of some of the world's weirdest medical museums you'll find on your travels.

Bart's Pathology Museum, England

A university collection started in 1879, this exclusive medical oddity exhibit is part of the Queen Mary, University of London.

It's open only for special soirees and events that fill up quickly. It's even hosted a pop-up cake shop by Eat Your Heart Out bakers.

The nearly 5,000 specimens include various objects pulled from human bodies over the last 150 years -- toothbrush in the esophagus, anyone?

Also on display: the dissected body parts of assassin John Belingham among other relics dating to the 1700s.

Berlin Museum of Medical History at the Charité, Germany

Snippets of Germany's medical history find a home in this restored 19th-century building that houses 1,800 of the 23,000 original specimens that survived World War II bombings.

The oldest artifacts include bladder stones from the 1700s. Other curios include a 60-pound megacolon from a patient who died in 1960, an 18th-century birthing chair and various tumors alongside forms of other disease.

The museum also traces the darker side of German medicine, including how the National Socialists used science to justify their horrific actions toward race purification.

Fragonard Museum, France

Originally an anatomy collection for veterinary students begun in the 1700s just outside Paris, the curiosities-filled Musée Fragonard opened to the public in 1902, closing in the 1990s for renovations that lasted until 2008.

Skeletons and anatomical displays fill the rooms, but the main event is in the cabinet of unsettling specimens.

Meguro Parasitological Museum, Japan

Celebrating its 60th birthday this year, the Meguro Museum started out when Dr. Satoru Kamegai began exhibiting parasites to raise public awareness after World War II.

His specimens evolved into one of the most intriguing medical museums in the world, with two floors dedicated entirely to hundreds of skin-crawling (and burrowing) parasites. The museum owns approximately 60,000 specimens.

An impossibly long Diphyllobothrium nihonkaiense, or tapeworm, is on display.

Those who want to keep the experience alive can purchase a T-shirt with the creature printed on it, more or less where it would be living inside of you, feeding parasitically.

Museum Vrolik, Netherlands

This medical and anatomy museum is just one of many trippy experiences in Amsterdam. The 10,000 oddball items from the Vrolik family's collection dating to the 1700s include one-eyed creatures, preserved conjoined twins and so-called mermaid fetuses.

Paul Stradin's History of Medicine Museum, Latvia

Latvia doesn't scream medical tourism, but this museum's hodgepodge of items started by Latvia's greatest surgeon and medical historian is worth a visit.

Dr. Paul Stradins started the collection in the 1920s. It includes, among other things, both a two-headed canine and the dog named Chernushka, who was launched into space aboard Sputnik 9, and survived.

The museum houses more than 203,000 items, with dioramas including a recreated medieval pharmacy and town that explores healing techniques of the Middle Ages.

The Maude Abbott Medical Museum Osler Collection, Canada

A varied collection of about 150 organs dating to the late 19th century is the major draw at this Canadian academic museum. The only problem is that you can't visit it -- yet.

The museum is, for the moment, exclusively online, featuring detailed images and information for the collection, but McGill University is making room for a physical exhibition to showcase the extensive array of innards, skeletons, autopsy log books and pathological specimens.

Many of the organs come from across North America, but are primarily from local Montreal hospitals.